Finding the Fourth Proportional to 157,382.13, 217,187.35 and 85,762.13
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Solution
The fourth proportional to 157,382.13, 217,187.35 and 85,762.13 is: 118,351.75
Step by Step Solution
- Step 1: Write the proportion equation
157,382.13 : 217,187.35 = 85,762.13 : x - Step 2: Convert to fraction form
157,382.13/217,187.35 = 85,762.13/x - Step 3: Cross multiply
157,382.13x = 217,187.35 × 85,762.13 - Step 4: Simplify right side
157,382.13x = 18,626,450,073.62 - Step 5: Solve for x
x = 18,626,450,073.62/157,382.13 - Step 6: Final answer
x = 118,351.75
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.